public FastAzureIndexInput(AzureDirectory azuredirectory, BlobMeta blobMeta)
{
this._name = blobMeta.Name;
this._fileMutex = BlobMutexManager.GrabMutex(this._name);
this._fileMutex.WaitOne();
try
{
this._azureDirectory = azuredirectory;
this._blobContainer = azuredirectory.BlobContainer;
this._blob = blobMeta.Blob;
string name = this._name;
bool flag = false;
if (!this.CacheDirectory.FileExists(name))
{
flag = true;
}
else
{
long num = this.CacheDirectory.FileLength(name);
long result1 = blobMeta.Length;
DateTime dateTime = blobMeta.LastModified;
if (num != result1)
{
flag = true;
}
else
{
long ticks = this.CacheDirectory.FileModified(name);
if (ticks > FastAzureIndexInput.ticks1970)
{
ticks -= FastAzureIndexInput.ticks1970;
}
DateTime universalTime = new DateTime(ticks, DateTimeKind.Local).ToUniversalTime();
if (universalTime != dateTime && dateTime.Subtract(universalTime).TotalSeconds > 1.0)
{
flag = true;
}
}
}
if (flag)
{
StreamOutput cachedOutputAsStream = this._azureDirectory.CreateCachedOutputAsStream(name);
this._blob.ParallelDownloadBlob((Stream)cachedOutputAsStream);
cachedOutputAsStream.Flush();
cachedOutputAsStream.Close();
this._indexInput = this.CacheDirectory.OpenInput(name);
}
else
{
this._indexInput = this.CacheDirectory.OpenInput(name);
}
}
finally
{
this._fileMutex.ReleaseMutex();
}
}
public FastAzureIndexInput(FastAzureIndexInput cloneInput)
{
this._fileMutex = BlobMutexManager.GrabMutex(cloneInput._name);
this._fileMutex.WaitOne();
try
{
this._azureDirectory = cloneInput._azureDirectory;
this._blobContainer = cloneInput._blobContainer;
this._blob = cloneInput._blob;
this._indexInput = cloneInput._indexInput.Clone() as IndexInput;
}
catch (Exception ex)
{
}
finally
{
this._fileMutex.ReleaseMutex();
}
}
public FastAzureIndexInput(AzureDirectory azuredirectory, ICloudBlob blob, out BlobMeta meta)
{
meta = new BlobMeta();
this._name = blob.Uri.Segments[blob.Uri.Segments.Length - 1];
this._fileMutex = BlobMutexManager.GrabMutex(this._name);
this._fileMutex.WaitOne();
try
{
this._azureDirectory = azuredirectory;
this._blobContainer = azuredirectory.BlobContainer;
this._blob = blob;
string name = this._name;
bool flag = false;
if (!this.CacheDirectory.FileExists(name))
{
flag = true;
}
else
{
long num = this.CacheDirectory.FileLength(name);
long result1 = blob.Properties.Length;
long.TryParse(blob.Metadata["CachedLength"], out result1);
long result2 = 0;
DateTime dateTime = blob.Properties.LastModified.Value.UtcDateTime;
if (long.TryParse(blob.Metadata["CachedLastModified"], out result2))
{
if (result2 > FastAzureIndexInput.ticks1970)
{
result2 -= FastAzureIndexInput.ticks1970;
}
dateTime = new DateTime(result2).ToUniversalTime();
}
if (num != result1)
{
flag = true;
}
else
{
long ticks = this.CacheDirectory.FileModified(name);
if (ticks > FastAzureIndexInput.ticks1970)
{
ticks -= FastAzureIndexInput.ticks1970;
}
DateTime universalTime = new DateTime(ticks, DateTimeKind.Local).ToUniversalTime();
if (universalTime != dateTime && dateTime.Subtract(universalTime).TotalSeconds > 1.0)
{
flag = true;
}
}
meta.Name = this._name;
meta.LastModified = dateTime;
meta.Length = result1;
meta.Blob = blob;
}
if (flag)
{
StreamOutput cachedOutputAsStream = this._azureDirectory.CreateCachedOutputAsStream(name);
this._blob.ParallelDownloadBlob((Stream)cachedOutputAsStream);
cachedOutputAsStream.Flush();
cachedOutputAsStream.Close();
this._indexInput = this.CacheDirectory.OpenInput(name);
}
else
{
this._indexInput = this.CacheDirectory.OpenInput(name);
}
meta.HasData = true;
}
finally
{
this._fileMutex.ReleaseMutex();
}
}
